The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to undertake advanced equipment testing and diagnostics. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with advanced equipment testing and diagnostics, or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment

Required skills

Look for evidence that confirms skills in:

reading, interpreting and following information on written job instructions, specifications, standard operating procedures, charts, lists, drawings and other applicable reference documents

planning and sequencing operations

checking and clarifying task-related information

problem solving

checking for conformance to specifications

using tools and equipment to conduct performance and fault finding tests

undertaking root cause analysis

undertaking calculations and numerical operations within the scope of this unit

using computer

using information management systems

making recommendations for rectifying faults

implementing and reviewing rectification strategy

documenting findings and outcomes

Required knowledge

Look for evidence that confirms knowledge of:

hazards and control measures associated with conducting tests and fault finding across equipment, including housekeeping

safe work practices and procedures

tests to be conducted to diagnose faults at equipment and component level

sources of information available to assist in fault finding

uses and parameters of information management systems

required rectification for equipment faults

practices and procedures in root cause analysis

equipment performance specifications

documentation requirements

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Mobile plant and equipment

Hydraulics, engine, power train and electronic systems

Job related information

Personnel accounts/descriptions, log books, job records standard operating procedures, manufacturers' specifications

Accessed

By manual or electronic means

Previous records

Equipment logs and history

Hazards

Ventilation hazards including battery gas leaks and (freon) paint emission

Excessive noise

Fluid spillage

Electrical hazards from generator sets and water

Lifting hazards caused by the removal and replacement of heavy components, e.g. engines and transmissions

Hydraulic hazards such as high oil pressure and temperature

Drive trains hazards such as tail shaft wind up

Fire hazards from the activation of fuel and temperature

Information management systems include

Retrieving test data from the Service Information System (SIS)

Equipment management systems

Factory passwords

Finding test data through, microfiche and SIS

Obtaining relevant Flash File information

Finding full load settings (FLS) and full torque settings (FTS), SIS or similar

Using the dynamometer and windows performance analysis reporting programs

Producing performance analysis report

Test equipment

Dynamometer, electronic technician, multimeter, flow meter, pressure gauges, communication adaptors, scroll box and stop watch

Performance tests

Rocker checks for oil

Fluid level checks

Fuel and cooling system checks

Emergency shut-down operation checks

Final walk around inspection

Manual and/or electronic tests of equipment and/or components

Cylinder cut out tests

Solenoid tests

Cycle times

Sensor tests

Lubrication pressure checks

Leak checks

Power checks using the dynamometer program, engine performance tools, transmission and hydraulic test equipment

Checks on alignments between components

Rectification strategy

Repair, referral, replacement, dispatch to other personnel